package com.atguigu.eduorder.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.atguigu.eduorder.entity.TOrder;
import com.atguigu.eduorder.entity.TPayLog;
import com.atguigu.eduorder.enums.PayType;
import com.atguigu.eduorder.mapper.TPayLogMapper;
import com.atguigu.eduorder.service.TOrderService;
import com.atguigu.eduorder.service.TPayLogService;
import com.atguigu.eduorder.util.ConstantPropertiesUtils;
import com.atguigu.eduorder.util.HttpClient;
import com.atguigu.servicebase.exceptionhandler.ELeanExeception;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.github.wxpay.sdk.WXPayUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.math.BigDecimal;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * <p>
 * 支付日志表 服务实现类
 * </p>
 *
 * @author Panghl
 * @since 2021-02-21
 */
@Service
public class TPayLogServiceImpl extends ServiceImpl<TPayLogMapper, TPayLog> implements TPayLogService {

    @Autowired
    private TOrderService orderService;

    /**
     * 生成支付二维码
     *
     * @param orderNo
     * @return
     */
    @Override
    public Map createNative(String orderNo) {
        //1、根据订单号查询订单信息
        TOrder order = orderService.getByOrderNo(orderNo);
        //2、设置支付参数
        Map<String, String> m = new HashMap<>();
        m.put("appid", ConstantPropertiesUtils.APP_ID);
        m.put("mch_id", ConstantPropertiesUtils.PARTNER);
        m.put("nonce_str", WXPayUtil.generateNonceStr());
        m.put("body", order.getCourseTitle()); //课程标题
        m.put("out_trade_no", orderNo); //订单号
        m.put("total_fee", order.getTotalFee().multiply(new BigDecimal("100")).longValue() + "");
        m.put("spbill_create_ip", "127.0.0.1");
        m.put("notify_url", ConstantPropertiesUtils.NOTIFY_URL);
        m.put("trade_type", "NATIVE");

        //3、HTTPClient来根据URL访问第三方接口并且传递参数
        HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/unifiedorder");
        try {
            //设置xml格式的参数
            client.setXmlParam(WXPayUtil.generateSignedXml(m,ConstantPropertiesUtils.PARTNER_KEY ));
            client.setHttps(true);
            //执行post请求发送
            client.post();
            //4、返回第三方的数据
            //返回内容，是使用xml格式返回
            String xml = client.getContent();
            Map<String, String> resultMap = WXPayUtil.xmlToMap(xml);

            Map map = new HashMap<>();
            map.put("out_trade_no", orderNo);
            map.put("course_id", order.getCourseId());
            map.put("total_fee", order.getTotalFee());
            map.put("result_code", resultMap.get("result_code"));
            map.put("code_url", resultMap.get("code_url"));
            //微信支付二维码2小时过期，可采取2小时未支付取消订单
            //redisTemplate.opsForValue().set(orderNo, map, 120, TimeUnit.MINUTES);
            return map;
        } catch (Exception e) {
           throw new ELeanExeception(20001,"生成二维码失败");
        }
    }

    /**
     * 获取订单状态
     *
     * @param orderNo
     * @return
     */
    @Override
    public Map<String, String> queryPayStatus(String orderNo) {
        try {
            //1、封装参数
            Map m = new HashMap<>();
            m.put("appid", ConstantPropertiesUtils.APP_ID);
            m.put("mch_id", ConstantPropertiesUtils.PARTNER);
            m.put("out_trade_no", orderNo);
            m.put("nonce_str", WXPayUtil.generateNonceStr());
            //2、设置请求
            HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/orderquery");
            client.setXmlParam(WXPayUtil.generateSignedXml(m, ConstantPropertiesUtils.PARTNER_KEY));
            client.setHttps(true);
            client.post();
            //3、返回第三方的数据
            String xml = client.getContent();
            Map<String, String> resultMap = WXPayUtil.xmlToMap(xml);
            return resultMap;
        } catch (Exception e) {
            throw new ELeanExeception(20001,"获取订单信息失败");
        }
    }

    /**
     * 修改订单状态
     *
     * @param map
     */
    @Override
    public void updateOrderStatus(Map<String, String> map) {
        //获取订单号
        String orderNo = map.get("out_trade_no");
        //根据订单id查询订单信息
        TOrder order = orderService.getByOrderNo(orderNo);
        if (order.getStatus().intValue() == 1) {return;}
        order.setStatus(1);
        orderService.updateById(order);

        TPayLog payLog = copyProperties(order,map);
        baseMapper.insert(payLog);
    }

    private TPayLog copyProperties(TOrder order, Map<String, String> map) {
        //记录支付日志
        TPayLog payLog=new TPayLog();
        payLog.setOrderNo(order.getOrderNo());//支付订单号
        payLog.setPayTime(new Date());
        payLog.setPayType(PayType.WXPay.getValue());//支付类型
        payLog.setTotalFee(order.getTotalFee());//总金额(分)
        payLog.setTradeState(map.get("trade_state"));//支付状态
        payLog.setTransactionId(map.get("transaction_id")); //微信订单号
        payLog.setAttr(JSONObject.toJSONString(map));
        return payLog;
    }
}
